var pageData = {
    data: {
      switch1Checked: true,
      switch2Checked: false,
      switch1Style: '',
      switch2Style: 'text-decoration: line-through'
    }
  }
  for (var i = 1; i <= 2; ++i) {
    (function (index) {
      pageData[`switch${index}Change`] = function (e) {
        console.log(`switch${index}发生change事件，携带值为`, e.detail.value)
        var obj = {}
        obj[`switch${index}Checked`] = e.detail.value
        this.setData(obj)
        obj = {}
        obj[`switch${index}Style`] = e.detail.value ? '' : 'text-decoration: line-through'
        this.setData(obj)
      }
    })(i)
  }
  Page(pageData)